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Models · Updated 29 Oct, 05:55 am IST

Qwenputer embeds a deterministic RISC‑V CPU inside Qwen 3.5 model weights

Image: Hacker News (100+ points)

Why it matters for readers: It's an unusual technical trick that lets a neural model run a small CPU inside itself, which is interesting to explore.

  • Qwenputer is a stock Qwen 3.5 4B with an embedded RISC‑V CPU implemented inside the model weights.1
  • The model uses its Gated DeltaNet (GDN) attention layers as RAM so the CPU runs during forward passes without external tools.1
  • The in‑weights CPU can run arithmetic operations and execute C and MicroPython code deterministically inside the model.1
  • The Qwenputer model files are hosted on Hugging Face and ModelScope and accompanying code is on GitHub.1
  • The author also wrote follow‑ups exploring hybrid models hiding reasoning in RNN state and using compiled weights as tamper‑resistant monitoring.1

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